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为拓宽无人机侦察作战范围,提高探测定位精度,提出一种适用于无人机的机载单站无源定位系统,首先建立应用计算相位差方法定位的无人机观测平台模型,并对提出应用DFT的相位差测量方法;然后进行机载单站无源定位系统的设计,无源定位系统兼容了无人机遥测系统设备;最后对系统整体进行了仿真,给出了在一定条件下该系统对目标x,y,z坐标的定位结果,仿真结果证明了系统设计的可行性。
In order to broaden the scope of reconnaissance operations of UAVs and improve the accuracy of detection and localization, an airborne single station passive location system suitable for UAVs is proposed. First, an UAV observation platform model based on the method of phase difference calculation is established. The phase difference measurement method based on DFT is proposed. Then the design of passive positioning system for airborne single station is carried out. The passive locating system is compatible with the UAV telemetry system. Finally, the whole system is simulated and given under certain conditions The results of the system’s positioning on the x, y, z coordinates of the target show that the system design is feasible.